A new genus of anthophilous drosophilids, Impatiophila (Diptera, Drosophilidae): morphology, DNA barcoding and molecular phylogeny, with descriptions of thirty-nine new species
Author
Fu, Zhao
Author
Toda, Masanori J.
Author
Li, Nan-Nan
Author
Zhang, Ya-Ping
Author
Gao, Jian-Jun
text
Zootaxa
2016
4120
1
1
100
journal article
38932
10.11646/zootaxa.4120.1.1
606b81b7-45af-4821-a885-ebf237fd4cc4
1175-5326
266831
EC979B80-9468-4E56-B5C0-90A7F1C78CB3
4)
Impatiophila convergens
Fu & Gao
,
sp. nov.
(
Fig. 14
; Pl. 1C; Pl. 6C)
Diagnosis
. Setae of middle row on 2nd costal section all weak, trichoid. Hindleg tibia without black, apically blunt, stout spine at outer apex on underside. Tenth sternite somewhat triangularly convex on dorsal margin (
Fig. 14
D). Oviscapt valve distally concave on ventral margin in lateral view, with 9‒10 lateral ovisensilla (
Fig. 14
G, H).
Description
(♂, ♀). Head: Cibarium with 2 medial and 4−7 posterior sensilla per side.
Thorax (Pl. 1C): Postpronotum brown; scutum blackish brown, paler along transverse suture, medially with narrow, pale brown, longitudinal stripe; scutellum dark brown; pleura brown to blackish brown.
Wing (Pl. 1C) hyaline; veins yellow. C1 setae 2; ventral one thinner and shorter. Haltere pale yellow.
Legs (Pl. 1C) yellow.
Abdomen (Pl. 1C): Tergites each with broad, pale brown, caudal band. Sternites pale yellow; male VI somewhat quadrate, slightly longer than wide, nearly straight or slightly concave on posterior margin.
Male terminalia (
Fig. 14
A −F): Epandrium posteriorly pubescent on dorsal 2/3, ventrally with 8 long setae; caudoventral portion broad, roundish distally, with a patch of ca. 20 short, stout setulae. Surstylus with 2 long setae in addition to 2 stout, upturned prensiseta around caudodorsal corner, 4 apically converging prensisetae along distal margin and 2 long setae near ventral apex. Cercus sparsely pubescent on large area, with ca. 20 long setae. Hypandrium somewhat trapezoid in ventral view. Gonopod apically oval in lateral view. Paramere slightly curved dorsad subapically, longer than twice of width in lateral view, with 6 sensilla. Aedeagal basal process about 3/5 length of paramere.
Female terminalia (
Fig. 14
G, H; Pl. 6C): Oviscapt valve gently curved on dorsosubapical margin and less expanded dorsomedially in lateral view, with 4 dorsal ovisensilla and 9−10 ventral ones distally increasing in size. Spermathecal capsule brown; introvert depth of duct about 1/3 of capsule height.
FIGURE 14.
Impatiophila convergens
Fu & Gao
,
sp. nov.
Adult male (holotype, #00311) and female (paratype, #00540): A, periphallic organs (caudolateral view); B, caudoventral part of epandrium; C, surstylus (caudal view); D, tenth sternite; E, phallic organs (dorsal view); F, phallic organs (lateral view); G, oviscapt (lateral view); H, oviscapt (ventral view).
Measurements: BL = 2.08 (1♀
paratype
: 2.09) mm, ThL = 0.91 (0.96) mm, WL = 2.16 (2.17) mm, WW = 0.99 (1.02) mm.
Indices: arb = 2/1 (1♀
paratype
: 2−3/1), FW/HW = 0.51 (0.52), ch/o = 0.21 (0.16), prorb = 0.93 (0.92), rcorb = 0.67 (0.70), orbito = 1.25 (1.20), vb = 0.45 (0.41), dcl = 0.50 (0.54), dcp = 0.38 (0.42), sterno = 0.64 (0.63), msterno = 0.72 (0.74), sctl = 1.05 (0.99), sctlp = 1.06 (1.07), C = 2.21 (2.45), 4c = 0.96 (0.82),
4v
= 1.65 (1.49),
5x
= 1.42 (1.46), ac = 2.50 (2.50), M = 0.46 (0.45).
Holotype
. ♂ (#00311), Hanmi Village, Beibeng Town, Motuo County, Linzhi District, Xizang,
China
,
29°22′00′′N
,
95°07′39′′E
, ca.
2130 m
,
26.ix.2010
,
ex
Impatiens
sp. aff.
bahanensis
Hand.-Mazz. (
Fig. 1
B), J.J. Gao (
KIZ
).
Paratype
.
CHINA
: ♀ (#00540), same data as
holotype
(
KIZ
).
Distribution
.
China
(Xizang).
Etymology
. Referring to the converging (
convergens
) prensisetae on the distal margin of surstylus.